• 정보교육학회논문지
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• 제5권1호
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• pp.145-156
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• 2001

본 연구의 목적은 컴퓨터 교육을 실시할 수 있는 상황학습 모형을 정립하고, 상황학습 및 전통적학습이 워드프로세서 학습 시간의 학습태도와 컴퓨터 학습능력 향상에 미치는 효과를 검증하는 것이다. 본 연구의 결과를 요약하면 다음과 같다. 먼저, 상황학습 및 전통적학습이 워드프로세서 시간의 학습태도에 미치는 효과에 대해서 이해도 흥미도 성취도 집중도 적용도 자발성의 6개 영역에서 살펴보았다. 그 결과, 이해도 면에서는 전통적학습이 상황학습보다 더 나은 효과를 나타내었고, 나머지 5개 면에서는 상황학습이 우세한 결과를 보였다. 다음으로, 상황학습 및 전통적학습이 학습자의 컴퓨터 학습능력 향상에 미치는 효과에 대해서 살펴보았다. 그 결과 전통적학습이 상황학습보다 근소한 차이로 우위를 보였다. 하지만, 컴퓨터 학습에 대한 아동들의 학습태도면에서 상당부분 상황학습이 전통적학습 보다 우세했다는 점은 연구의 큰 성과이자 의미를 찾아볼 수 있는 대목이라고 할 수 있다.

• 인터넷정보학회논문지
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• 제3권5호
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• pp.51-62
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• 2002

컴퓨터의 발전과 정보통신기술의 발달은 멀티미디어 기술 확산과 대용량의 멀티미디어 동영상데이터 사용을 증가시켰다. 동영상데이터는 전체적인 데이터를 파악하고, 원하는 동영상을 바로 재생 가능할 뿐만 아니라 동영상 데이터의 정보가 요약된 리스트제공이 필요하다. 그리고 효과적인 동영상 검색을 위해서는 동영상 데이터의 색인과정이 필수적이며 꼭 필요한 기술이다. 따라서 본 연구는 동영상 데이터 내용기반 색인에 기초가 된 프레임의 짓 검출의 효과적인 방법을 제안한다. 제안된 방법은 프레임의 대각선 방향으로 나누어 일정한 픽셀 색상 정보 값을 추출하였다 동영상 데이터의 각각 프레임에서 추출된 칼라색상의 픽셀값은 A(j, i)행렬로 i는 프레임 수. j는 프레임의 영상 높이로 저장한다. 저장되어진 픽셀값은 프레임간의 색상차의 자승합을 이용하여 프레임간의 특정 값의 차이를 임계 값보다 클 경우 빠르고 정화하게 컷을 검출하였다. 프레임 컷 검출에 대한 실험을 포괄적으로 하기 위해 여러 종류의 동영상 데이터를 실험 대상으로 하여 컷 검출 시스템의 성능을 비교 분석하였다.

• 한국운동역학회지
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• 제15권1호
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• pp.127-142
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• 2005

The purpose of this study was to analysis biomechanics of the lower extremities injury the heights(40cm, 60cm, 80cm) of jump box as performed depth jump motion by 6 females aerobic athletes and 6 non-experience females students. The event of depth jump were set to be drop, landing and jump. The depth jump motions on the force plate were filmed using a digital video cameras, and data were collected through the cinematography and force plate. On the basis of the results analyzed, the conclusions were drawn as follows: 1. The landing time of skill group was shorter than unskill group at 40cm, 60cm drop height during drop-landing-jump phase especially. The landing time of 60cm drop height was significant between two group(p<.05). 2. The peak GRF of sagittal and frontaI direction following drop height improve was variety pattern and the peak vertical force of 40cm drop height was significantly(p<.05). 3. The magnitude of peak passive force was not increase to change the drop height. 4. The peak passive forces was significant at 40cm drop height between two groups(p<.05)

• 한국산학기술학회논문지
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• 제19권3호
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• pp.553-556
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• 2018

본 연구는 실제 산업현장에서 활용 가능한 'NCS를 활용한 사업 내 자격 신설 정비 매뉴얼'을 개발하여, 기업특수 숙련기술에 대한 육성 평가를 담당하는 사업 내 자격 운영을 체계화 시킬 수 있는 기준 마련이 필요하고 사업체별 특수 직무를 다루고 있는 사업 내 자격이 기업의 숙련요구를 정확히 반영함과 동시에 각 사업 내 자격의 기준과 절차를 표준화할 수 있는 매뉴얼 개발을 통한 신뢰성 및 객관성 제고하고자 하는데 그 목적이 있다. 연구의 목적을 달성하기 위하여 일본의 사업 내 자격을 운영하고 있는 기업 및 협회 등을 방문하여 해외사례분석을 하여 구체적인 현행제도 및 사례분석을 통한 개선방향과 사업 내 자격을 인정받고 현재 검정을 시행하고 있는 기관 실무자들을 대상으로 온라인 및 1:1 면접조사를 통하여 설문을 실시했으며, 사업 내 자격의 체계 및 내용에 대한 현황분석을 통하여 NCS와 사업 내 자격의 체계 분석 및 자격 신설 정비 모형을 도출하여 NCS를 활용한 사업 내 자격 신설 정비 표준매뉴얼을 개발하여 이 표준매뉴얼의 사용 촉진을 위하여 현행제도 및 사례분석을 통한 개선방향 제시하였다. 이러한 결과를 토대로 NCS 기반 사업 내 자격 신설 매뉴얼과 NCS 기반 사업 내 자격 정비 매뉴얼을 제시하였다.

• 한국실내디자인학회논문집
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• 제14권6호
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• pp.112-119
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• 2005

Virtual reality(VR) is the technology that makes a user regard being in virtual space generated by computer as in the real world. Mainly, it has been studied about the three senses which are the sense of vision, touch and hearing in the five human senses. Through that, it is applied to the system making all the senses in the human body real. Even though the design idea of theater is brought to that of simulation theater, there are not many similarities between them and not general design rules yet. For making a better situation, in cooperation with a domestic company making a motion simulator for one or two person by itself, I have considered the minimum conditions and formations of the simulation theater being widely useful in the buildings of general commercial spaces from the environmental viewpoint, and basing on that facts I try to make some sorts of fundamental design types so that they are more available than those in the past. In this research, I have set the three types of simulation theater, the 50 seats of motion simulator for one person, the 20 seats of motion simulator and the 50 seats for two persons, in my researching range. Moreover, regarding the size of the simulation theater, I put the best specifications in order and also put them together, and then with making standards able to be reflected on the design plan, I have researched it for the purpose of the accumulation of skill in the construction of the special theater. Here, the design rule I suggested might be a design standard that it will be thought useful widely.

• 한국의료질향상학회지
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• 제19권2호
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• pp.14-34
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• 2013

Objectives: The purpose of this study is to provide comprehensive information of qualification systems of developed countries needed to establish our national system for QI(Quality improvement) specialists. Methods: All articles related to any applicable domestic or foreign countries' laws, operational status, and detailed programs for professional qualification system of QI were reviewed. Result: In the United States, a non-profit organization, Healthcare Quality Certification Commission (HQCC) has set the policies, procedures and standards in the field of health care quality. And qualification system of CPHQ (certified professional in healthcare quality) has been operated in order to authenticate the qualifications in the field of quality management. IBQH(international Board for quality in healthcare), a qualification system of experts in the United Kingdom, was designed to assist the qualification of professionals to improve the quality of healthcare. In addition, Health Research Center of Feinberg School of Medicine in Northwestern University has been operating Master's and doctoral degree programs in the field of the quality of care and patient safety and IHI (institute for healthcare improvement) open school was operating a professional training course related to the quality of care and patient safety. Conclusion: Quantity and complexity of information of the quality of care and patient safety have been increased. For reform of the health care system, a special training course of the expertise and leadership are needed. So far, there is no national professional certification courses in our nation. Therefore essential job skill should be acquired individually. For systematic and effective quality improvement activities, the educational and certification system with professional development model are needed.

• 한국컴퓨터정보학회논문지
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• 제19권8호
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• pp.187-196
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• 2014

본 연구는 고등학생의 학습탄력성에 관한 요인이 자기효능감과 학업성취감에 미치는 영향 요인은 스트레스 정도에 따라 조절효과가 있는지 분석해 보았다. 이를 위해 본 연구는 문헌연구를 통하여 인과모형과 연구가설을 설정한 다음, G광역시에 소재하고 있는 고등학생 292명을 대상으로 표본을 추출하여 설문조사를 실시하였다. 분석결과, 학습탄력성 요인인 인지능력과 의사소통이 자기효능감과 학업성취감에 미치는 영향은 스트레스 정도에 따라 차이가 있는 것으로 나타났다. 즉, 스트레스 정도가 낮은 고등학생일수록 자기효능감과 학업성취감이 높다는 점에 그 의의를 들 수 있다. 따라서 본 연구는 이러한 분석 결과를 토대로 학업성취감을 고취시킬 수 있는 방안을 제시하였다.

• 한국의류학회지
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• 제29권9_10호
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• pp.1349-1358
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• 2005

Generally apparel products were recognized as an incongruent product type which direct search was needed for. But nowadays apparel products were ranked as a second product type next to electronics in sale amount of internet shopping mall. Therefore more detailed study on which attributes of fashion products are more successful and suitable in internet shopping mall is necessary. This study was executed to analyze common attributes of successful apparel in internet shopping mall on the basis of real sale data, and then to help internet apparel marketer plan marketing strategies more efficiently. Common attributes of successful apparel products in internet shopping-mall in terms of product, price and promotion attributes were identified. 240 products which were loaded in bestseller section of internet shopping-mall for 8 weeks from November to December, 2004 were analyzed. The results are as follows. First, products ratio for women ($76.7\%$) were higher than for men($18.3\%$). And the amount of each apparel product types purchased by consumers were ranked in the order of leather/fur coat, woven coat, inner wear, jacket, T-shirts, pants, training wear, suit, knit wear etc. and basic style dominated in $74.2\%$. General brands ($69.2\%$) that had price competitiveness were preferred to famous designer brand, national brand and PB brand. Preferred level of price was ten thousand to fifty thousand won. For promotion skill, in order of just one product, product adding promotion product and package set were preferred. Regular price, less than $50\%$ off and more than $50\%$ off price showed no difference in preference. Product planning strategy for internet apparel marketer was followed on the basis of these results.

• 한국운동역학회지
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• 제21권5호
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• pp.631-638
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• 2011

This study had two purposes. The first was to analyze the period of the final record set by the male shot-putters in the IAAF World Championships, Daegu 2011 from the point of view of kinematics. The other was to identify an efficient movement for shot putting based on the analysis. The research used the eight finalists of in the championship as subjects. We analyzed the seven most important kinematic factors in shot putting based on the type of technique: the execution time of the delivery phase, release velocity, release angle, release, center of mass (COM) velocity, and shot trajectories. The analytical results showed the following average figures for the record 12 meters: execution time of the delivery phase: (0.19 s), release height: (2.06 m), release angle: ($34.68^{\circ}$), release velocity: (13.25 m/s), angular velocity of shoulder: ($922.38^{\circ}/s$), and angular velocity of pelvis: ($479.50^{\circ}/s$). Further, the results showed that the highest COM velocity was 2.25 m/s and the shot trajectories were close to a straight line in the release phase.

• 천문학회지
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• 제52권6호
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• pp.217-225
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• 2019

We apply a modified Convolutional Neural Network (CNN) model in conjunction with transfer learning to predict whether an active region (AR) would produce a ≥C-class or ≥M-class flare within the next 24 hours. We collect line-of-sight magnetogram samples of ARs provided by the SHARP from May 2010 to September 2018, which is a new data product from the HMI onboard the SDO. Based on these AR samples, we adopt the approach of shuffle-and-split cross-validation (CV) to build a database that includes 10 separate data sets. Each of the 10 data sets is segregated by NOAA AR number into a training and a testing data set. After training, validating, and testing our model, we compare the results with previous studies using predictive performance metrics, with a focus on the true skill statistic (TSS). The main results from this study are summarized as follows. First, to the best of our knowledge, this is the first time that the CNN model with transfer learning is used in solar physics to make binary class predictions for both ≥C-class and ≥M-class flares, without manually engineered features extracted from the observational data. Second, our model achieves relatively high scores of TSS = 0.640±0.075 and TSS = 0.526±0.052 for ≥M-class prediction and ≥C-class prediction, respectively, which is comparable to that of previous models. Third, our model also obtains quite good scores in five other metrics for both ≥C-class and ≥M-class flare prediction. Our results demonstrate that our modified CNN model with transfer learning is an effective method for flare forecasting with reasonable prediction performance.